It is not rocket science and you don't have to be an IT professional to keep your PC in good shape. Any computer user can follow the guidelines I have mentioned below, and can reduce their PC problems dramatically.

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Steps

1

Use a good anti-virus program. This is the most important piece of work in preventive maintenance. Installing the anti virus program is not good enough. You should do following as well:

Set-up the program to download and install updates automatically.

Schedule periodic full system scans.

Check the virus definitions date regularly and see whether it is up to date.

Install a Personal Firewall. Most of the anti virus programs are bundled with Personal Firewalls these days. Personal firewall is a barrier between your PC and the outside world. This can protect your PC from hackers and Spyware tools.

5

Do not download and install unknown software from Internet. This is the biggest mistake most of the PC users are doing. Some of this software can damage the Windows registry, which cause lot of errors.

6

Uninstall unnecessary programs installed in your PC.

7

Be very careful when you download music from the Internet. Always stick to one trustworthy web site.

8

Perform Scandisk periodically to check the Hard Drive.

9

Delete temporary Internet files. To automatically delete these files in IE9, goto Tools - Internet Options - Second one click it and select everything. then click apply then ok then it will delete all

10

If possible, try not to use Internet Explorer because it has major security breaches which could be potentially harmful for your system. Two alternative web browsers you can try are Mozilla Firefox and Operaor at FileHippo. Java to get the latest Java download.

11

Download Web Security Guard at Web Security Guard or download the SiteAdvisor plug-in, both protect you from most web based security threats and annoyances. Both give you a safety rating for the sites you are on and give a rating on your Google searches as well, from green (safe) to red (dangerous). Web Security Guard will have a pop-up saying that if a particular website has been reported as dangerous. You can choose to continue and go to the site or don't go to the site. One example of a dangerous site is smileycentral.com. One example of a safe site is http://www.google.com. Web Security Guard will also have a gold "shield" if the website has been reported but is not severely dangerous and will not give you pop-up about the website. This will help to prevent you visiting sites that are likely to damage your computer. SiteAdvisor can be found on SiteAdvisor

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For example:Don't say: Eat more fats.Do say: Add fats with some nutritional value to the foods you already eat. Try olive oil, butter, avocado, and mayonnaise.

Tips

Firefox users have access to one of the most powerful web security tools in existence - NoScript. it can be found on the add-ons page: https://addons.mozilla.org. It blocks all web scripts from running unless explicitly allowed by the user. You can also blacklist any site.

doubleclick.net would be good to add to any blacklists.

Avast and Zonealarm are very good free anti-virus and Firewall software, respectively.